Electric power supply apparatus in an industrial plant (20) for treating materials, wherein the plant (20) comprises one or more lines (11, 21) for treating the materials and one or more user devices (17, 18, 19) powered with alternating current by power supply means (13) comprising at least one transformer (14) connected to a mains power network (15) and a power supply system (16) located downstream of the transformer (14).
Legal claims defining the scope of protection, as filed with the USPTO.
2. The apparatus as in claim 1, wherein said alternative energy source is connected to said user devices of said rolling line by means of a direct current connection system.
3. The apparatus as in claim 2, wherein said direct current connection systems, located respectively between said alternative energy source and said furnace and between said alternative energy source and said user devices of the rolling line, are associated with a direct current common connection bus.
4. The apparatus as in claim 3, further comprising a high frequency converter positioned between said common bus and said alternative energy source.
5. The apparatus as in claim 3, further comprising a high frequency converters positioned between said common bus and said direct current connection systems.
6. The apparatus as in claim 3, further comprising an energy accumulation system electrically connected to said common bus.
7. The apparatus as in claim 6, wherein said accumulation system comprises an accumulation devices connected to the common bus by means of a corresponding high frequency converter.
8. The apparatus as in claim 1, wherein said alternative energy source comprises a renewable energy source and/or a non-renewable energy sources able to supply electrical energy in direct current or alternating current.
9. An industrial steel plant for treating materials comprising a line for treating materials and user devices powered in alternating current and an electric power supply apparatus as in claim 1.
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May 20, 2021
September 17, 2024
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